package com.twu.biblioteca;

public class MembershipInformationState implements State{
    private static MembershipInformationState membershipInformationState;

    private MembershipInformationState(){

    }

    public static State getMembershipInformationStateInstance() {
        if (membershipInformationState == null) {
            membershipInformationState = new MembershipInformationState();
        }

        return membershipInformationState;
    }

    @Override
    public State change(String userInput)
    {
        return MenuState.getMenuStateInstance();
    }

    @Override
    public String displayMenuOptions()
    {
        return null;
    }

    @Override
    public String displayWelcomeMessage() {
        return "Please talk to a Librarian. Thank you.";
    }
}
